Implements an HBM Daq Stream Client and some simple example programs using C++.
Copyright (c) 2014 Hottinger Baldwin Messtechnik. See the LICENSE file for license rights and limitations.
All sources of the example programs are to be found on the HBM Daq Stream Examples github project page.
We try to use as much existing and prooved software as possbile in order to keep implementation and testing effort as low as possible. All libraries used carry a generous license. See the licenses for details.
The open source project jsoncpp is being used as JSON composer and parser. Version 1.6.2 is included as submodule. Use the following git command in order to get the code:
git submodule update --init --recursive. Please make sure to choose Visual Studio 2013 as platform toolset (to be found in the project configuration properties under "General").
The unit tests provided do use the Boost libraries (1.55). Refer to boost for details.
For Linux, simply install the Boost development packages of your distribution. For Windows, the projects are tailored to link against the prebuilt boost binaries from boost.
Download and install the binaries and set the 'BOOST_ROOT' environment variable to the installation directory.
Under Linux the cmake build system is being used. Install it using your distribution package system. Create a sub directory inside the project directory. Change into this subdirectory and call 'cmake ..'. Execute 'make' afterwards to build all libraries and executables.
Tested with gcc 4.8.2 and 4.9.2.
A solution for MSVC2012 is provided.
Center of all is a library containing everything needed to implement an HBM Daq Stream Client. Sources are to be found below lib. Headers needed to interface with the library are to be found under include.
The most important class is StreamClient. It encapsulates the communication with a Daq Stream server. It collects and keeps stream related meta information received from the Daq Stream Server. It provides methods for subscribing and unsubscribing signals from the Daq Stream Server.
Signals holds a container of objects representing all subscribed signals from a Daq Stream Server. The SubScribedSignal class processes signal related meta information and measured values.
There are simple example programs using the library.
This program connects to a HBM Daq Streaming socket, receives everything that arrives, subscribes all signals, interprets stream and signal related meta information and measured data. It is started with at least one paramter telling about the address of the HBM Daq Stream server.
'./exampleclient.bin 172.19.3.4'
Call without parameter or with parameter '-h' to get help.
Works as example client but stops and restarts the streaming client periodically.